Senior Software Engineer, Back-end - Fraud
New
Remote PolandFull-TimeSenior
Salary301,000 - 401,000 PLN per year
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Job Details
- Experience
- 5+ years
- Required Skills
- AWSPostgreSQLPythonSQLKotlinKubernetesMySQLCI/CD
Requirements
- 5+ years of experience building backend systems at scale
- Experience with distributed systems and infrastructure using AWS, MySQL/PostgreSQL, and Kubernetes
- Strong system design skills and a track record of delivering maintainable, extensible services
- Proficiency in SQL and working with data-rich environments
- Familiarity with CI/CD practices and safe production deployments
- Strong written and verbal communication skills
- A proactive, ownership-driven mindset with a focus on learning and team success
- Experience with Python
- Experience with Kotlin
Responsibilities
- Own and deliver quarterly goals for your team
- Lead engineers through ambiguity to solve open-ended problems
- Design and implement backend services and APIs using Python or Kotlin
- Take an active role in shaping the team's roadmap, collaborating on technical design, and driving execution across projects that span multiple teams
- Partner with the Engineering Manager and your teammates to elevate quality standards, evolve engineering processes, and represent the team in cross-functional initiatives
- Collaborate cross-functionally with stakeholders in Fraud Ops, Compliance, Product, Machine Learning, and Analytics to build scalable fraud tooling and infrastructure
- Proactively identify opportunities to improve system reliability, team efficiency, or architecture—and lead efforts to address them
- Contribute to operational excellence by maintaining high observability standards, responding to incidents, and participating in the on-call rotation
- Foster a culture of ownership, inclusion, and craftsmanship by mentoring teammates, providing feedback, and upholding high code and design standards
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